What I forgot to mention is that you should inquire about the contarctor if it is being subbed out by the developer. An irrigation system is not like the guy thats doing the plastering, roof, or siding on the house. These are usually unless you have problems a one shot deal and the job is done. With irrigation you need to establish a relationship with the contractor who will back up his work and be there for the seasons to come to service and repair.

Is the developer ging you the option? If so I would recommend you get some bids yourself from contractors that you might know other people may have had great luck with. Based on the price. It is pretty good for a total of 38 heads

David, I dont know how much you were getting charged but in most cases homeowners like yourself will spend to rent a compressor close to the same as what it will cost to have a professional contractor do the blow out. Plus atlkeast in our case we guarantee the system against any freeze damage. As an example to replace a backflow that has been damaged from freeze it can cost you up to $250.00 right off the bat in the spring. If you already own a compressor then its a different story.

Also remember that the 1-20 has a 5 year warranty verses a 2 year on the PGP. Open each one of them up and you will see the difference in spring and extra threading on housing, plus! built in check valves on the 1-20's. It more than just a flow stop!!!